So yeah, ways to learn one of the easy programming language without purchasing (I am not going to spend 11,000 bucks on a software just to find out that the script it uses is way out of my league).
You can learn C# and Boo but UnityScript only gets used in Unity. So it´s bad luck that your trial doesn´t work anymore. You could contact UT and explain your problem. Maybe they will send you a new trial key.
Learning UnityScript shouldn´t take much longer than a weekend. Learning the language is only one part though. You also have to get used to the Unity API.
